Yangjin and Wang Xiaobo,both 5 graders at elementary school are best friends for each other.Wang Xiaobo constantly brags about the river running through his hometown and numbers of crabs and fish living in it.There comes a long vacation after their graduation from the elementary school.Yangjin plans to visit Wang Xiaobo on his way to the grandmother's.He saves the money for this trip.After leaving the letter that he can manage the trip alone to his grandmother's,two boys starts his adventure.After realizing that it is not as fun as expected to stay at Wang Xiaobo's hometown.Yangjin gets anxious to leave for the grandmother's as soon as possible but as Yang's friend doesn't let him go,his trip gets postponed day by day. 啊朋友再见。两个小呆子。当我们谈论童年时我们在谈论什么？。记忆、责任及其他。《有人赞美聪慧，有人则不》：再见，童年的小伙伴。当你听到家乡话 就是别样的感受。最喜小儿无赖,溪头卧剥莲蓬。童年与故乡。有人赞美电影，有人则不。少见的中国童年题材片。 故事发生在山西某地。城里孩子杨晋（李书晨 饰）小学毕业了，他天资聪颖，能清楚地背诵全省地名，自感已经长大，为庆祝自己的这一发现，他写信告诉父母自己要去奶奶家，真实的情况是他跑到了山里好朋友王小波（王琛 饰）家。王小波学习成绩平平，平日里调皮捣蛋，他即能炸黄河里的鱼，又能捉山里的螃蟹，是小伙伴中的“混世魔王”。杨晋的奶奶有严重的重男轻女思想，她爱孙子胜过爱孙女，而常受爸爸批评的小波并没觉得自己做错什么，在俩孩子眼中，成年人的世界是不可理喻的，只有他们看到的才是真正的世界。两个城乡不同环境长大的孩子，在这个属于自己的夏天里，度过了一段无法无天的美好时光……
